Pacific Island Ecosystems at Risk (PIER)

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Eragrostis brownii
(Kunth) Nees ex Steud., Poaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  yes

Common name(s): [more details]

Chinese: chang hua mei cao

English: bay grass, Brown's love grass, common love grass, sheepgrass

Palauan: ouemoket

Habit:  grass

Description:  "Spreading or occasionally narrow, light yellow-green, perennial tufts, 15-60-(70) cm, sometimes with prostrate culms; branching intravaginal. Leaf-sheath glabrous, rounded. Ligule ciliate, hairs 0.1-0.2 mm. Collar hairs to 3.5 mm. Leaf-blade 4-20 cm x 1-3.5 mm, usually flat, sometimes involute, abaxially smooth, sometimes scabrid above, adaxially finely ribbed and finely scabrid on ribs, sometimes with scattered long hairs near base; margins scabrid, tapered to filiform, acute tip. Culm 5-60 cm, internodes smooth. Panicle 3-30 cm, contracted to often very lax with delicate widespread branches, bearing clustered to well-spaced pedicelled spikelets; rachis smooth below, becoming scabrid above, branches and pedicels scabrid, branch-axils glabrous. Spikelets (3)-6-10 x 2-2.5 mm, (5)-7-16-flowered, glabrous, compressed, linear-lanceolate or narrow-oblong, grey-green, leaden green, or purplish. Glumes subequal or unequal, 1-nerved, submembranous, acute, lanceolate to ovate-lanceolate, keeled, scabrid on keel; lower 1.0-1.9 mm, subulate, upper 1.5-2.4 mm, lanceolate. Lemma 1.7-2.4 mm, 3-nerved with lateral nerves distinct, submembranous, ± opaque, ovate-lanceolate, smooth, but keel finely scabrid near subacute to obtuse apex. Palea < lemma, persistent, keels and truncate apex closely ciliate. Rachilla 0.3-0.4 mm, glabrous. Stamens 3; anthers 0.3-0.5 mm. Caryopsis 0.6-0.7 x 0.4-0.5 mm"  (Edgar & Connor, 2000; p. 526).

Description from GrassBase.

Habitat/ecology:  In Hawai‘i, "naturalized and common in pastures, wet grassland, and openings in wet forest, 1,130-2,000 m" (Wagner et al., p. 1541). In New Zealand, "waste ground, roadsides, modified grassland, sometimes in swampy ground or near hot springs" (Edgar & Connor, 2000; p. 526).

Propagation:  Seed

Native range:  Australia (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia (Pacific offshore islands)
Norfolk Islands
Norfolk Island probably introduced
invasive
cultivated
Orchard, Anthony E., ed. (1994) (p. 12)
"It has possibly been introduced to the Island as a fodder plant". Voucher cited: F.C. Allen 113 (CHR)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Rota Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 42)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Rota Island introduced
Raulerson, L. (2006) (p. 8)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Saipan Island introduced
Raulerson, L. (2006) (p. 8)
French Polynesia
Marquesas Islands
Hiva Oa Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: S. Jourdan 320 (PAP)
Adventice
French Polynesia
Austral (Tubuai) Islands
Rapa Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Vouchers cited: J. Florence (legit J. Trichet) 6304 (PAP), J. Florence 6434b (PAP), J. Florence 6577 (PAP)
Adventice
Guam
Guam Island
Guam Island introduced
Raulerson, L. (2006) (p. 8)
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1540-1541)
Voucher cited: Hitchcock 14519 (BISH)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Lorence, David/Flynn, Tim (1999) (p. 5)
Voucher cited: T. Flynn et al. 6169 (K, PTBG)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1540-1541)
State of Hawaii
Hawaiian Islands
Moloka‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1540-1541)
Japan (offshore islands)
Ogasawara (Bonin) Islands
Bonin (Ogasawara) Islands   Kato, Hidetoshi (2007)
Kiribati
Line Islands
Kiritimati (Christmas) Atoll   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1995) (voucher ID: PTBG 38256)
Taxon name on voucher: Eragrostis brownii (Kunth) Nees ex Steud.
Palau
Palau (Belau ) (main island group)
Babeldaob Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 42)
Palau
Palau (Belau ) (main island group)
Babeldaob Island   Beleu National Museum (Republic of Palau. Koror.) (1981) (voucher ID: BNM 3051)
Taxon name on voucher: Eragrostis brownii (Kunth) Nees
Papua New Guinea
Papua New Guinea (eastern New Guinea Island)
Papua New Guinea (eastern New Guinea Island)   Henty, E. E. (1969) (p. 92)
Widely spread from near sea level to 7000 ft.
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia
Australia (continental)
Australia (continental) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
South Australia, Tasmania, Victoria, Western Australia
Australia
Australia (continental)
New South Wales native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Australia
Australia (continental)
Queensland native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
China
China
China (People's Republic of)   Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Mountain slopes, open places, roadsides; ca. 1000 m. Anhui, Fujian, Hainan, Yunnan, Zhejiang.
New Zealand
New Zealand
New Zealand (country) introduced
invasive
Edgar, E./Connor, H. (2000) (p. 526)
Singapore
Singapore
Singapore (Republic of) uncertain if introduced
invasive
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 39)
Weed of uncertain origin
Indian Ocean
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
British Indian Ocean Territory
Chagos Archipelago
Diego Garcia Island introduced
invasive
Whistler, W. Arthur (1996) (p. 24)


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This page was created on 17 MAR 2007 and was last updated on 30 NOV 2008.